Hanna Instruments HI 2216 - Manual (Page 16)

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• If necessary, press the ARROW keys to select a different standard
value.
• The “ ” tag will blink on the LCD until the reading
is stable.
• When the reading is stable and close to the selected
standard, the “ READY” tag will be displayed and
the “ CFM” tag will blink.
• Press CFM to confirm calibration.
• The calibrated value will be displayed on the primary LCD and the
second expected standard value on the secondary LCD.
Note: The instrument will automatically skip the standard used for the
first point.
• After the first calibration point is confirmed, submerse the ISE electrode
approximately 3 cm (1¼”) into the second calibration solution.
• If necessary, press the ARROW keys to select a different standard
value.
• The “ ” tag will blink on the LCD until the reading
is stable.
• When the reading is stable and close to the selected
standard, the “ READY” tag will be displayed and
the “ CFM” tag will blink.
• Press CFM to confirm calibration.
• The instrument stores the calibration value and returns to normal
measurement mode.
Notes: • If the mV value is out of the mV range (±2000), “WRONG”
“
BUF
” and “ WRONG” “ ” tags will blink alternately. In this
case, check if the correct standard has been used.
• If the new slope is out of the slope window, “ WRONG” “
BUF
”
and “ WRONG” “ ” tags will blink alternately. In this case,
check if the correct standard has been used.
Slope window is between ±20 mV and ±120 mV if
ion charge is not specified (undF option in SETUP menu)
or between 50% and 120% of default slope for the
corresponding ion charge.